Vulcanizer



R. G. DANIEL July k27,` 1937,

-VULCANIZER v Fired March 12, 1935 INVENTOR. R6, DwnL'e BY a1/1 an/ ATTORNEY July 27, 1937. v R, G, DANlEL 2,088,026 VULCANIZER v Filed March l2, 1935 2 Shets-Sheef. 2

INVENTOR. R G. Darule/ ATTORNEY.

Paieniecl'luly 27, 1937 Y.

UNITED lSTATES PATENT ori-fici:

2,088,026 vULoANizER Royal G. Daniel, Beverly Hills, Calif.

Application March 12, 1935, Serial No. 10,600

4 Claims. (Cl. 18-18) My invention relates to vulcanizers, and more ing in the direction of the arrows 6 6 of Figparticularly to vulcanizers adapted to vulcanize a ure 2. segment of an automobile tire casing. Reference Figure 7 is a broken plan view looking in the is made to my co-pending application Serial No. direction of the arrows 'l-l of Figure 6.

14,427, filed April 3, 1935, for subject matter Figure 8 is a broken vertical section similar 5 shown but not claimed herein. to Figure 1, but illustrating a modication of the My invention belongs to that type of vulcanizers heating chamber. in which a movable Wall is utilized, whereby the Figure 9 is a section taken on the line 9-9 of vulcanizer may be adjusted to treat different sizes Figure 8. l@ of tires. The principal object of the invention is Figure 10 is a plan of a modified construcl0 to provide simple yet eiective means for holding tion for bead plates. the movable wall in any desired position Within Figure 11 is a section taken on the line II--II its range. of Figure 10.

Another object is to provide easily operable Figure 12 is a plan of another modification for 15 means for moving the last-mentioned wall to its the bead plates. l l5 operative position. Figure 13 is a section taken on the line I3-I3 As soon as the vulcanization is complete, the of Figure 12. tire may be removed from the vulcanizer. How- Referring more in 4detail to the drawings, the

ever, the movable wall is still too hot tohandle reference numeral I designates legs upon which manually. To avoid this difficulty, it is an obthe present vulcanizer is mounted.y Immediately 20 ject of my invention to vprovide means for autoresting on the legs is a steam boiler 2, having a matically moving saidwall as socnvas it is rehorizontal chamber, comprising upper and lower leased, y, walls 3 and 4 respectively. The walls are hori- Afurther object is to provide means for clampzontally curved, and the lower wall 4 has a U- ing va tire casing in the present Vulcanizer, which shaped trough 5 at its lowest portion. 25 means are quickly removable from its clamping Concentric with the curve of the U-shaped position Without the use of pivots and the like. trough is a heating element, comprising a cylin- A still further object is to provide a close and drical combustion chamber 6, the ends of which intimate arrangement between a heating element are open and project from the boiler, as shown and the mold of the vulcanizer, whereby to save in Figure l. 30 manufacturing and operating costs. Mounted at one end of the chamber 6 is a Another object resides in eliminating spacer triple-jet gas burner 1. A pipe 8 supplies fuel strips now necessary with bead plates, Where the to the burner from a source of supply (not latter are intended to be used for diierent sizes shown). The other end of the chamber 6 conof molds. f nects with a ilue 9, for the exhaust of spent gases.

Further objects reside in novel details of con- A conduit I0 connects an automatic pressure construction and in novel combinations and artI01 H (in the Pipe 8) With the Steam bOlBI 2. fOr rangements of parts., which ,will appear in the the automatic regulation of the gas supply. course of the following description It is thought clear Without further illustration In the drawings, likefreference characters desthat an electncal heatm? element may be Sub' 40 ignate similar parts in the several views. stltuted for the ,gas heatmg element Figure 1 is a vertical sectional viewV of a vul- The Steam holler has a' rela'twely stawnary anizer embodyn features of the present im Wall or vertical chamber I2, connecting with the c g `horizontal chamber. Inner and outer Walls I3 Venilmand I4 (with respect to the tire Cavity) denne 45 Flgm'e 2 1S a Vertlcal sectlon taken along the said vertical chamber. The outer Wall I4 is well Ime 2-2 0f Fleure 1- f insulated, as indicated at l5. A plete ls holds Figure 3 is an enlarged Section taken Orl-the the insulating materiel in piace .and protects line 3-3 of Figure 1. same. Figure 4 is a sectional view similar to Figure Slidable on a bed I9, which is in fact the con- 50 3, but showing a modied construction. cave upper surface of the Wall 3, is a so-called Figure 5 is an enlarged, broken viewgof a modimovable Wall, represented in its entirety by the fication, looking in the same direction as Figlnumber Il. The movable wall has an interior ure 1. steam space I8, and is insulated similarto the Y Figure 6 isran enlarged, broken elevation, lookouter Wall I4. Edge 20 of thel movable wall that 55 cross bar or yoke 31.

bolt 42 having a handle43.

Y ailing with the combustion chamber 48.

engages the bed I3 is machined. It has been found suiicient and it is preferable only to machine portion 2I of said edge, which is the portion nearest the tire cavity.

Flexible conduits 22 and 23 respectively carry steam to and return condensation from the steam space I8 to the boiler 2.

For actuating the movable wall, the following mechanism is provided:

Slots 24 are provided at the sides of the bed I9, beyond the side walls of the boiler 2. The slots extend in the direction of the movement of the movable wall I1. Depending at either side from the movable wall and extending through the slots are apertured lugs 25. Mounted in heads 26 and '21 on the under side of the bed I9 are slide bars 23 projecting the apertures of the lugs 25 and upon which the lugs slide. Disposed around the bars 23 and between the beads 25 and the lugs u275 are coil springs 29, urging the movable wall away from the stationary wall I2 all times.

The slots 24 are in practice'recesses made in the bed i 3 and closed at their'open ends by'plates 35 bolted in place. The plates 33 are shown as assisting in supporting the bars 23. In addition, the plates are tapped and carry stud bolts 3l, which bear against the lugs 25, which in turn compress the springs and urge the movable wall toward the stationary wall. The bolts 3l have cranks I5 iormanipulation thereof. Y

The bed I9 and the movable and stationary walls together provide a cavity for a tire 32. Adapter plates 33 shape the cavity to conform to the tire and bead plates 34 are superposed on the segment of the tire in the mold. Spacer strips 35 may be interposed between complementary adapter and bead plates, whereby said plates may be used with different sizes of tires'. An air bag 39 is shown in the tire.

For clamping the tire and bead plates in place, hooks 35 are mounted on both'the movable and stationary walls. Caught under the hooks is a The ends of the cross bar are bent at an upward angle, considering it in an operative position,.and the under, engaging faces of the hooks 36 areV disposed similar to the pitch of the ends 33. This upward pitch of the cross bar and the engaged surfaces on the hooks provides a binding action between same when outward pressure is applied in the tire by means of increased pressure inthe air bag 39.

If desired, the engaging surfaces of the hooks 36 and the cross bar'ends 38 may be serrated, as indicated at 49 in Figure 5, to further prevent slippage. Moreover, one of the hooks 36 may be in the form of an eye f4 I, if desired.

In threaded engagement with the cross bar 31 and Vvertical thereof in an operative position is a The foot of the bolt has a ball and socket connection with a pressure plate 44 that clamps the tire and bed plates in the cavity between the walls..

A stop 4B is bolted at an end of the cavity, for limiting longitudinal movement ofthe adapter plates 33 and to facilitate arranging same. It is thought clear Vwithout illustration that adjacent Y' ends of the-adapter-and-beadplates may be appropriately marked in order that the same ends may always be adjacent. This is of value where the machining of such plates is'done manually and hence may be ground to fit one way only. v

Figures l8 and!) illustrate a modification lof the in the boiler `-2 in a sorto'f hairpin arrangement The-iiue hooks 36.

' automatically. ga-s chamber; to wit, a return ue 41 is arranged may be kidney shape in section, as shown in Figure 9, to increase the radiating surface, in order to extract all the heat possible from the gases of combustion.

It will be Vnoted that the ue in both forms shown is of smaller diameter than the combustion chamber. This arrangement provides a restricted outlet for the combustion chamber, but does not interfere with the normal draft produced by the flue.

In the modifications shown'in Figures l0 to 13, inclusive, Ybead plates are shown that do not need spacer strips, although said plates are adapt able for different sizes of tires.

In both forms shown in Figures 10 to 13, shoulder members 49 and 59 respectively have a pin 5I and a boss 52 provided with a socket 53 to receive the pin.

A set screw 54 holds the pin and its associated shoulder 1&9 in position. A connecting plate 55 mounted on the shoulder YI? bridges the space between the shoulders. Y

In the form shown 1in Figures 10 and 1l, the edge of the connecting plate adjacent to the other shoulder is out out, as shown at 56 to receive bosses 51 in which the pins 5I are mounted. In theform'shown inFigures 12 and 13, the shoulder IIS has-arecess l58 for receiving the adjacent edge of the connecting plate.

It seems quite apparent that the improvements shown in Figures to 13, inclusive, are applivcable to the adapter plates as well as to the bead plates.

In the operation of the present vulcanizer, water is supplied to the boiler 2, and the gas burner is lit. The quantity of gas supplied to the burner 1 is automatically controlled by the pressure in the boiler 2, through the intermediary of the control II. The steam pressure from the boiler is carried to the spaces within both the stationary and movable walls.

The movable wall is then moved toward the stationary Wall by means of the cranks 45 and associated parts, until the cavity between the walls is approximately the thickness of the tire to be vulcanized, at its widestV point. In this movement, the springs 29 are compressed.

Adapters 33, and, if'needed, a spacing strip 35 are placed in the cavity, forming a mold. The

portion ofthe tire'32 Ethat is to Vbe vulcanized is then placed in the mold. An air bag 39 is inserted in the tire Vand bead plates 3d (or such as are shown in Figures 10 and l1 or 12 and 13) are superposed on theftire.

The cross bar 31 is'then caught under the The jack screw 42^and studs 3l are then screwedhome, whereby the pressure plate lit and the movable wall are brought into conning arrangement with respect to the tire. Air pressure is then admitted to the air bag 39.

As soon as the vulcanizationis complete, the air pressure inwtherbag 39 is rst released. Then the jack screw 42 is unscrewed and the cross bar 31 lifted out from under the hooks. The bead plates in Vpractice are then lifted or pried out. Thereafter, the tire is withdrawn or rolledout. When it is desiredY to change the adapters to accommodate Ya diiferent size of tire, the cranks are operated to unscrew the studs 3|. The springs 29, through the intermediary of the lugs 25, move said wall away from vthe stationary wall The stop'46 provides a limit for the longitudinal movement of the adapters in the bed I9. The serra-tions 40, when used, are anadded precaution against slippage of the movable wall, a1- though in ordinary operation it has been found that the pitch of the ends 38 of the cross bar and the similar pitch of the under surface of the 5 hooks 36 are sufficient to prevent slippage.

If either of the improved forms of bead plates is used, such as shown on Sheet II of the drawings, an adjustment is made for them to fit the mold cavity. The adjustment is effected by slid- 0 ing the pin 5| in the socket 53 and holding the 20 ing portions being in binding engagement with said fastening means, and means clamping thev cross bar in said engagement.

2. In a vulcanizer having relatively stationary and movable walls, means for holding the walls 25 together during vulcanization, comprising hooks on the walls, a cross bar having end portions bent outwardly with respect to the walls, the hooks having faces of a pitch similar to said end portions, and means clamping the end portions of the cross bar in contact with said faces.

3. In afvulcanizer having relatively stationary yand movable walls, means for holding the walls together during vulcanization, comprising hooks on the walls, a cross bar having portions` flaring with respect to said Walls, said ilaring portions being in binding engagement with said hooks, and means clamping the cross bar in said engagement.

4. In a vulcanizer, the combination of spaced heating walls, a cross bar spanning the space between the walls and having portions fla-ring upwardly with respect to the walls, fastening means on the walls for holding the cross bar in said Y position, at least one of said means having an overhanging arm,`unsupported at one end, one of the flaring portions of the cross bar having a laterally sliding connection with said unsupported end, and means to clamp the cross bar in said position.

ROYAL G. DANIEL. 

